Roll-shaper supporting bracket



Aug. 29 1950 A. oTT ETAL 2,520,165

ROLL-SHAPER SUPPORTING BRACKET Filed March 27, 1946 2 Sheets-Sheet 2INVENTOR. ALbEQT OTT CHARLES orf ATTOQNE Y K BY Patented ug. 29, .195()Bruits A UNITED STATES ATENT OFFICE (Granted under the act of March 3,i883, as

amended April 30, 1928; 370 0. G. 757) 2 Claims.

This invention relates to a rolling fixture and more particularlypertains to a Shaper supporting bracket for attachment to a driving rollof a plate-roll machine to impart an arcuate or U- shape to a iiatplate.

One of the present methods ci manufacturing U-shaped plates is by meansof a bending machine employed to press a series of longitudinal bends toform a 180 degree turn of the plate. The numberof bends and the locationof each has to be marked on the plate to be formed. These bends vary forthe different size plates to be formed. This practice, which has beenfound to be cumbersome, expensive, and protracted, forms a U-shapedplate having a plurality of such bends. The present invention permitsdispensing with the bending machine by the use of arrolling fixture thatforms a smooth-round U-shaped plate. Use of the subject device isinexpensive and substantially time saving as compared with the presentpractice. l

It is an object of this invention to provide a fixture for attachment toa driving roll of a' plateroll machine to impart a U shape to a flatplate.

Another object is to provide a xture attachment of this characteradapted to form a U- shaped plate having a smooth surface and free ofany bends thereon.

A still further object is to provide a fixture attachment of thischaracter adapted to form semicircular shaped plates or plates having apartially arcuate shape.

Further objects and advantages of this invention, as well as itsconstruction, arrangement and operation, will be apparent from thefollowing description and claims in connection with the accompanyingdrawings, in which Fig. 1 is a fragmentary isometric View showing axture embodying this invention in position on a plate-roll machine;

Fig. 2 is a fragmentary elevation on a reduced scale of a portion of thestructure shown in Fig. l with the strap removed;

Fig. 3 is an end view of a portion of the structure shown in Fig. i;

Fig. 4 is a fragmentary side elevation showing a modified form' of theinvention in position on a plate-roll machine;

Fig. 5 is an end view of a portion of the structure shown in Fig. 4

Fig. 6 is a schematic diagram showing a xture embodying this inventionin position on a plate-roll machine and showing the plate to be formedin its initial position;

Fig. 'l is a schematic diagram showing the plate to be formed in itsintermediate position;

Fig. 8 is a schematic diagram showing the plate to be formed in itsfinal position; and

Fig. 9 is a vertical transverse section taken on the line S- of Fig. 2.

Bending xture il is shown in Fig. l in position relative to the drivingroll or former l2 and loose roll i3 of a standard rolling machine. Thebending fixture il, including a solid roll I4, is secured rigidly to thedriving roll i2 at each end by means of hold-down straps l5 secured onendiittings It?.

Solid roll if?. has an end-tting H5 on each end. Each end-fitting lcomprises a cylindrical cap il open at the inner end and an integrallyformed bracket-plate I8 having an arcuate bottom edge on the cuter end.A triangular bracket i9 secured to the end-fitting l5 has its baseinserted `in theY slot 2U of the driving roll i2. Reinforcing webs 2lare secured to bracket iii of end-fitting it'. Brackets 22, 23, and 2i,having arcuate bottom and top edges, are secured to cylindrical cap li.An arcuately shaped plate 25, forming the support for the roll id, restson the driving roll i2 and is secured to the integrally formed bracketi8 of the cylindrical cap il and the brackets 22, 23, and 2d.Rectangular bar-stop 2t rests in a slot cut in brackets 22 and isprevented from shifting laterally by brackets 2S. Hold-down strap l5 isa U-shaped member having flanged ends and reinforcing brackets, as shownin Figs. 2 and 3. Strap 2l', a similarly constructed member, is boltedto strap i5 by means of bolts 28 and nuts 29.

A modiiied form of the invention is shown in Figs. 4 and 5. Solid rolllil has a triangular bracket it secured on each end portion as bywelding. The base of each triangular bracket i9 nts into slot Eil of thedriving roll i2. Reinforcing webs 2l are secured to bracket i9 and theends of solidL roll l. Brackets 22', Z3', and 24;', having arcuatebottom and top edges, are secured to the solid roll ill. An arcuateplate 25', forming the support for the roll l, rests on the driving rolll2 and is secured to the brackets Zit', 23', and 2t. Rectangularbar-stop 25 rests in a slot cut in brackets t2' and extends to brackets23. The bar-stop 25 is secured to brackets 23'. Strap i5', a rectangularplate having anged ends and reinforcing brackets, as shown in Figs. land 5, is secured to brackets 22, 23 and 24. trap El, a U-shaped memberhaving flanged ends and reinforcing brackets, is bolted to strap l5 bymeans of bolts 2d and nuts 2Q'.

in the operation of the fixture, the end-fittings I6 are placed on thedriving roll I2 of a standard plate-roll machine. The slot 20 of thedriving roll I2 forms a guide for the end-ttings by means of brackets I9engaged slidably therein. The bar-stop 25 is inserted in the slot inbrackets 22 and the solidroll I4 inserted in the cylindrical caps i? or"the end-fittings iE. The end-fittings are then brought to bear vagainstthe' endsof the solid roll Eil. The straps I and 21 are placed inposition as shown on the drawings and the fix/- ture I I secured rigidlyto the driving roll I2 by means of bolts 2B and nuts 29.

A flat plate 39 to be formed into a U-shaped plate is inserted betweenthe bending fixture" II and the driving roll I2 and is prevented fromsliding therethrough by bar-stop 26, as shown in Fig. 6. The fixture androlls move the direction indicated by the arrows. At an intermediateposition, at plate i3Il has a partial roll as shown in Fig. 7. At thefinal position shown in Fig. 8 the plate has the' desired U-shaped formand the rolling is completed. This rolling'process produces the desiredform free of any bends on its surface.

In the'modified form the' fixture II is placed on the driving roll I2 asa unit and the' end brackets I9 are guided in the slot 2D. The strap2Iis placed in position and the xture is secured rigidly to theY drivingroll I2 by means of bolts 28 and-nuts 29. The bending process for thismodified form of the invention is the 'same as described above.

It is to be lunderstood that various Inodications and changes maybe'rnade in this invention without departing from the spirit and' scopethereof as set forth Vin the claims.

rIfhe invention described herein may be' manufactured and used by or forthe Government of theUnited States of America for governmental purposeswithout the paymentv of any royalties thereon'or therefor.

We claim:

liA` pivoted bending machine comprising a ,4 driving roll, a loose rollspaced from said driving roll, brackets having cylindrical cups clampedto the end portions of said driving roll, a solid roll having its endsmounted in said cylindrical cups, said solid roll being held in spacedrelation to said driving roll, said driving roll having a longitudinalslot, and said brackets having a portion extending 'into said: slot.

2. A plate-bending attachment for the slotted driving roll of a rollingmachine comprising a solid roll, a pair of brackets having cylindricalcups'engaging the. :ends of said solid roll, said brackets having anarcuate lower surface adapted ltobe positioned adjacent the upperportions of said driving roll and having a portion adapted to be seatedin such slot, a stop-bar extending betweenlsaid brackets, an elongatedstrap engagingv eachV of said brackets, arcuate straps engagingthebottomtI portion of said driving roll, and means for clampingtogether the ends of paired elongated and arcuate straps.

ALBERT OTT. CHARLES, OTT.

REFERENCES CITED The'following referencesA are of record in vthe rileAof this* patent:

UNITED` STATES PATENTS Number Name Date V283-147 Boardman May 8,-1860614,624 Riley Nov.- 22, 1898 "661,459 Stifel Nov. 6,11900 -8422994`Baldwin Feb. 5, 1907 '926,532 Wilson `June 29, 1909 1,852,101 BakerApr. 5, 1932 2,089,207 Holrnberg Aug 10, 1937 FOREIGN PATENTS NuinberCountry Date 12,253 Great Britain June 4, 1896 133344 'Greatv BritainJune8,'1897

